Originally Posted by Nyloth

But it seemed to me that chaotic evil seeks destruction and freedom. Correct me if I'm wrong. Astarion seeks to destroy everything in his path for fun, and he also seeks freedom. Most of his actions are not for profit, he seeks pleasure. And he finds it in murder of others. Or maybe that description of chaotic evil that I follow has been incorrectly translated? o..o

Astarion doesn't seek destruction for it's own sake. He seeks destruction with a set goal in mind that is: freedom or starting his own vampire sex-dungeon.
Also I just don't think freedom = chaotic.
A lawful good guy is perfectly free to be who he wants to be and he is lawful good, because living up to those values allows him to be what he wants to be. Freedom is the ability to be what you are. It encompasses all of the alignment system, and it's not exclusive to the chaotic segment.